Improvement in steam-condensers



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to supply the boiler feed-pumps.

UNrrNn STATES' PATENT Orrrcn.

WASHINGTON FITTS ANI) GEORGE K. GLUYAS, OF SAN FRANCISCO,

. p CALIFORNIA.

' IMPRovz-:MENT IN sTEAM-coNo'ENsERs.

Specification forming part of Letters Patent No. 131,779, dated October 1, 1872.

To all/whom t may concern: Be it known that we, WASHINGTON R. Prrrs and GEORGE VKGLUYAS, of the city of San Francisco, in the county of San Francisco and the State of California, have invented a new and Improved'High -Pressure Condenser, to

-be used more especially upon side-wheel highpressure `steamboats to condense the steam that escapes from the cylinder or cylinders and return the condense-water back to the forcepumps to be used in the boilers, ad infinitum;

` and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification.`

denser and eight sectional views of portions of the same.

Figure 1 is a plan of the condenser, the

, chambers A showing the direction in which the steam travels through it by the dotted arrows, from its entrance at the pipe a, (which pipe may be placed on the cover as drawn,or on the top of chamber Ayas may be most convenient,) toits escape through pipe b, (provided any portion of the steam is not condensed,) which has a rubber valve set on a grating, that may be used or not, at the option of the engineer. c, in dotted lines, is a pipe with branches to convey the condense-water out through c c to the hot well or reservoir d, in dotted lines, marks the partitions in the chambers A at either end. Zrepresents the heads to close up chambers A, (and can be made in one or more A pieces;) g, tubes;` h, cover over opening to pipe c, to prevent theA steam from backing up the condense-water; n, a graduated vacuumvalve.

Fig. 2 is an end elevation of the condenser,

` chambers A, tubes g, showing the direction of the steam by the dotted arrows, as in Fig. 1,

entrance at a, escape at b, through pipe 'i and rubber valve 7c, (the pipe c' can be made of anyv desired form with outlet in wheel-houseor through the upper deck of boat,) condensewater pipe c leading to outlet c c h, cover over outlet c. l

Fig. 4 is an enlarged view of rubber valve k as prepared for use; Figs. 5 and 6, enlargedplan and 'end views of valve-seat and grating b* for rubber valve; Figs. 7 and 8, enlarged side and end viewof covers h; Figs. 9 and 10 enlarged plan and edge views of a round valvcseat and grating b for rubber valve; Fig. l1, enlargedv view of round rubber valve 7c as prepared for use.

To enable others skilled in the art to make arid use our invention, we will proceed to describe itsconstruction and operation, with the advantages to be derived by its use.

As regards its construction, the drawings are marked and lettered, so that any mechanic can construct the various parts ofthe condenser by reference to the same. The chambers, covers, and partitions are made of boileriron, (cast-iron can be used,) with ordinary boiler-tubes, and for its operation and advantages we would say that this condenser is more particularly applicable to side-wheel "highpressure steamboats, and may be used on other high-pressure steamboats, and on land where a sufficient volume of water can be obtained to iiow over the condenser chambers and tubes. The general form of its various parts may be modied to suit space and distances, and can be made either square, round, or parallelograin, and for side-wheel highpressure steamboats is placed on the after-side of the wheel in the Wheelhouse, resting on a suitable framing, and to be protected from the drift-wood and ice by having either wood or iron braces over the chambers and tubes, the condenser to be raised to a suiiicient height to allow the condense-water to flow back to the hot well or reservoir; and its mode of operation is as follows: The steam, on leaving the cylinder, passes into the heater,77 (of whatever form it may be,) imparting a portion of its heat to the water therein, and theuncondensed portion of the steam then passes into the con, N denser7 in the wheel-house, where it is condensed by the water and spray from the paddle-wheel, and the condense-water then flows back to the hot well or reservoir at a temperature of from 1300 to 1600; the water then supplies the doctor or engine-pumps, and thence is pumped into the heater, where the water is further heated to from 1900 to 2080 of heat, and thence passes into the feed-drums for supply of boilers.

We would advise on new steamboats the use of tubular heaters,7 feeding through the tubes; exhaust around them the proportion one cubic foot of cylinder to twenty-two square feet of tube-surface, and the proportion ofthe condenser one cubic foot of cylinder to nineteen square feet of tube-surface. Tubes of oneinch inside diameter are the best to use-twoinch diameter will answerthe area of the tubes in rst compartment of the condenser to be as large as the exhaust-steam pipe, and diminishing gradually in each compartment, as shown in the drawings annexed.

The covers h are placed over the outlet c for the purpose of protecting the outlet-pipe c c from too great a pressure of water in the chambers A A, and to cause the water to spread in passing under the covers, thus preventing eddies from drawing exhaust steam and air into the outlet. v

We do not claim the chambers or the tubes, or the rubber or vacuum valves, independently.

What we do claim as our invention, and desire to secure by Letters Patent, is-

1. A steam-condenser having the chambers A divided into compartments and provided with tubes g, diminishing in number in each compartment, substantially as shown and described, for the purpose vset forth.

2. In a steam-condenser, the covers h, in combination with the pipes 0, substantially as and for the purpose described.

WASHINGTON R. PITTS. [L. s l GEORGE K. GLUYAS. [L. s.] Witnesses:

Enwn. GHATLIN, JAMES W. BowMAN. 

